ATI RN
Immune System Practice Questions Questions
Question 1 of 5
What is the role of the cisterna chyli?
Correct Answer: B
Rationale: Cisterna chyli stores lymph before the thoracic duct; it doesn't filter , produce cells , or transport blood .
Question 2 of 5
What is the primary source of lymph fluid?
Correct Answer: A
Rationale: Capillary filtration produces lymph; sweat , secretions , and marrow don't.
Question 3 of 5
The lymphatic system's role in immunity includes:
Correct Answer: B
Rationale: It activates lymphocytes ; RBCs are bone marrow, carbs are digestive, oxygen is blood.
Question 4 of 5
The thymus is derived from which embryonic structure?
Correct Answer: A
Rationale: The thymus comes from pharyngeal pouches; neural crest , mesoderm , and ectoderm form other structures.
Question 5 of 5
Which cells are responsible for cell-mediated immunity?
Correct Answer: B
Rationale: T cells mediate cellular immunity; B cells produce antibodies, macrophages and neutrophils are innate.